A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Influence of Blasting Vibrations Generated by Tunnel Construction on an Existing Road
Tunnel excavations are commonly carried out using the drill and blast method, which may cause blast-induced damage to adjacent buildings. Peak particle velocity (PPV) is a widely used parameter for evaluating the damage of blasting vibration. However, accurately predicting PPV is difficult with traditional empirical predicting methods because their results are often different from actual conditions. In this study, attenuation formula of propagation velocity of elastic stress waves in elastomer is derived on the basis of stress wave theory. Moreover, the formula for predicting PPV is modified in the case of multihole and multistage blasting and then applied to Guanlinzi Tunnel, which downtraverses through National Highway 316. Results show that the modified formula obtains a small relative error between predicted and in situ monitoring PPVs and can properly reflect the propagation law of PPV under the condition of multihole and multistage blasting. This work has important application prospects and can provide a reference for similar excavation blasting and vibration control methods.
Influence of Blasting Vibrations Generated by Tunnel Construction on an Existing Road
Tunnel excavations are commonly carried out using the drill and blast method, which may cause blast-induced damage to adjacent buildings. Peak particle velocity (PPV) is a widely used parameter for evaluating the damage of blasting vibration. However, accurately predicting PPV is difficult with traditional empirical predicting methods because their results are often different from actual conditions. In this study, attenuation formula of propagation velocity of elastic stress waves in elastomer is derived on the basis of stress wave theory. Moreover, the formula for predicting PPV is modified in the case of multihole and multistage blasting and then applied to Guanlinzi Tunnel, which downtraverses through National Highway 316. Results show that the modified formula obtains a small relative error between predicted and in situ monitoring PPVs and can properly reflect the propagation law of PPV under the condition of multihole and multistage blasting. This work has important application prospects and can provide a reference for similar excavation blasting and vibration control methods.
Influence of Blasting Vibrations Generated by Tunnel Construction on an Existing Road
Int J Civ Eng
Deng, Xianghui (author) / Wang, Jingyuan (author) / Wang, Rui (author) / Liu, Qin (author)
International Journal of Civil Engineering ; 18 ; 1381-1393
2020-12-01
13 pages
Article (Journal)
Electronic Resource
English
Vibrations from construction blasting
| Engineering Index Backfile | 1960
Finite element analysis of vibrations induced by propagating waves generated by tunnel blasting
| Online Contents | 1988
Finite element analysis of vibrations induced by propagating waves generated by tunnel blasting
| Springer Verlag | 1988